Siphon



Feb. 25, 1941.

R. M. FRITTS SIPHON INVENTOR. $440k 5/773 ll I Patented Feb. 25, 194.12,233,123

UNITED STATES PATENT OFFICE SIPHON Ralph M. Fritts, Kansas City, Mo.Application April 17, 1939, Serial No. 268,202

1 Claim. (01. 137-20) This invention relates to siphons in the of arm[4, the tubular form is developed into a nature of those used intransferring liquids from flared marginal portion [8. one container toanother, and the primary ob- Sealing rings 20 are mounted upon the outerject is the provision of a small compact and efsurface of arm I4 betweenrib l6 and the flared iective'siphon which is practical and e fficientin end of arm IS. ,The outside diameter of sealing 5 the laboratorywhere small bottles are to receive rings 20 is slightly greater than thediameter of liquids from relatively large containers. arm M at theextreme end thereof so that as One of the important aims of thisinvention priming section 22 is moved along arm [4, rings is to providea simple, inexpensive and effective 20 will bear against the innersurface 23 to estab- 10 siphon wherein is embodied novel means. for lisha frictional contact that Will preclude the 10 priming the same throughthe employment of escape of air. which means. the flow of liquid throughthe Priming section 22 is likewise tubular and siphon may be establishedwithout the use of While it m y be made of lass, it has been foundcomplicated pumps or suction devices, the nature pr fera le t employ acellulose composition of which are objectionable because of the inwhichmay be m d n through which ay 15 ability to maintain the same sanitaryand free be viewed the liqu d as it passes through body from foreignmatter, l0 and said section 22. Section 22 is tele- This invention hasfor another aim, the prosoopioally u d 0 a m M for movement vision of asiphon that is specially constructed longitudinally thereelohghe innerend of secto have a priming section, telescopically mount tion 22 has aperforated cap 24 secured thereto, 20 on one arm of the tubular body ofthe sip which circumscribes arm 14 and which engages through the mediumof such parts as will estabthe annular rib [6 to lim t t e p f vel oflish a definite seal between the siphon body and Section 22 in edirection l g m 4. said section, all to the end that very short strokesThe other end of section 22 s equipped with 25 will be required tocreate the suction necessary a flexible tubular tip ThiS p e endS 25 toestablish a flow of liquid through the siphon lo gitudinally fromsection 22 and is compressed body by the operator when the siphon isprimed as Details of construction and the combination W111 be heremaftelmore fully Set downof specially formed parts, more fully hereinafter Thefree end of arm 14 has an e al bead described and illustrated in theaccompanying 23 integral therewith Which e g s the flared 30 drawing,constitute minor objects of th i end of arm l4 to limit the relativemovement bevention. tween arm and section l4 and 22 respectively. In thedrawing: Thus, section 22 has a limitedmovement in two Figure 1 is aside elevational view of a siphon directions along arm e made to embodythe present invention, In some cases, arm I4 is provided with a com- 35Fig. 2 is a fragmentary longitudinal detailed Pressible Section 30 uponwhich. is ounted a sectional view through a portion of the siphonpinch-(300L132 that may be Operated to p the taken on line IIII of Fig.l. flow of fluid through body In. I Fig. 3 is a fragmentary longitudinalsectional P more pi S W es less ex- 40 view through a portion of thesiphon illustrating pensive manner 0f pp the how of fluid a modifiedform of th i ti 1 through body I0, after it has been once estab- Fig. 4is a similar view illustrating a still liShed, is the Vent 34 and plug35 therefor, further modification of the invention; and, Which ispositioned at the bight of the V-shaped Fig. 5 is an enlargedfragmentary detailed body I0. Either, or both of the means justdesectional view taken on line VV of Fig. 1. scribed may be employedwith the other parts The siphon body is preferably V-shaped, 0f thesiphontubular, and formed of glass or other transparent In theillustrated ent of the invenmaterial which may be kept clean through thetion Shown in 3 0f the drawing, e priming 5 use of steam or boilingwater. section 22 is the same as shown in Figs. 1, 2 and One arm 8 oftubular body I0 may be projected 5, with the single exception that thefree end of into receptacle l2 in the usual manner when the this sectionis closed by a wall 50. The upper or siphon is to be used. The other arm14 of body inner end of section 22 in this instance, does not H] isspecially formed in that it has an annular have the ring 24 thereonbecause when a closed outer rib l6 thereon between which and the end endsection is used, the same is completely with- 55 drawn from leg l4 sothat fluid may be directed into the container being filled.

In the embodiment of the invention seen in Fig. 4, the priming member isnot a tubular section embracing the outer surface of leg l4, but is aplunger 52 which extends into leg [4, the free end of which is notflared nor provided with the sealing rings, as mentioned with respect toFigs. 2 and 4. Plunger 52 is provided with rings 54 in the nature offabric threads, such as seen at 2|] in Figs. 2, 3 and 5. These rings 54are within an annular groove 56 on plunger 52 and are slightly greaterin diameter than the outside diameter of plunger 52 so that a frictionalen-.

gagement with the inner surface established.

When operating the siphon made in, accordance with the preferredembodiment of the invention, section 22 is moved outwardly as far aspossible or necessary, whereupon tubular tip 26 is compressed and closedby the operator. Section 22 is next forced inwardly along arm l4 so asto expel the trapped air outwardly through arm 8 and through the liquidwithin receptacle l2. When section 22 has been moved inwardly asufiicient distance, a quick, outward movement will create a suction ora partial vacuum within body l and section 22 which will insure thatliquid in receptacle l2 will be forced out through tubular body 10 andthe said section. Obviously, the operator will release his hold upon tip26 so as to permit the fluid to flow into the receiving bottle orcontainer. To stop the flow of fluid through the siphon, it is butnecessary to either close pinch-cock 32 or withdraw plug 36 from opening34.

When the siphon, such as illustrated in Fig. 3 is to be brought intoplay, section 22 is completely withdrawn from arm l4 after it has beenmoved inwardly a sufiicient distance to partly evacuate body I0 and thesection. A quick withdrawal of section 22 from its position on arm l4will establish a flow of fluid upwardly through arm 8 and thencedownwardly through arm I4 and out the end thereof, from which section 22has been withdrawn.

The same action is required when using the form of priming plunger 52shown in Fig. 4. At the outset, plunger 52 is forced inwardly along arml4 and thereafter quickly withdrawn to establish the necessary flow offluid through arm The advantages of siphons embodying any of j theconcepts herein described are obvious to those skilled in the art and itis clear that siphons embodying other modified forms of the inventionmay'be made without departing from the scope of the appended claim.

Having thus described the invention, what is claimed as new and desiredto be secured by Letters Patent is:

A siphon of the character described comprising an angular, tubular body;a tubular priming section telescopically mounted on the body at one end.thereof for sliding movement therealong; and elements on the body andsaid section for limiting the movement of the latter along the former,said tubular body having sealing rings thereon in frictional engagementwith the inner face of the priming section, the end of said body withinsaid priming section being flared and provided with an annular outerrib, said sealing rings being in circumscribing engagement wth the bodybetween the flared end thereof and said outer rib.

RALPH M. FRITTS.

